<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        div{
            background-image: url(pictures/桌3.jpg);
            background-repeat: no-repeat;
            background-size: contain;
            border:1px solid rgb(242, 242, 242);
            width: 100%;
            height:1000px;

            
        }
        img{
            display: absolute;
            top: 330px;
            left: 25px;
        }
    </style>
</head>
<body>
    <div>
        <!--<img src="pictures/红兔.png" width="300px">-->
    </div>

    <table>
        <tr>
          <th>表头1</th>
          <th colspan="2">合并列</th>
        </tr>
        <tr>
          <td>单元格1</td>
          <td>单元格2</td>
          <td>单元格3</td>
        </tr>
    </table>
      
    <table>
        <tr>
          <th>表头1</th>
          <th>表头2</th>
          <th>表头3</th>
        </tr>
        <tr>
          <td rowspan="2">合并单元格</td>
          <td>单元格2</td>
          <td>单元格3</td>
        </tr>
        <tr>
          <td>单元格5</td>
          <td>单元格6</td>
        </tr>
    </table>
</body>
</html>